<template>
  <div>
    <van-swipe class="my-swipe" :autoplay="3000" indicator-color="white">
      <van-swipe-item v-for="item in gallery" :key="item.id">
        <img :src="item.img_url" width="100%" style="display:block" />
      </van-swipe-item>
    </van-swipe>

    <Tips />

    <div class="info">
      <div class="title">{{ info.name }}</div>
      <div class="goods_brief">{{ info.goods_brief }}</div>
      <div class="retail_price">{{ info.retail_price | RMBformat }}</div>
    </div>

    <van-cell title="展示弹出层" is-link @click="isSkuShow = true" />

    <div class="attribute">
      <h3>商品参数</h3>
      <ul>
        <li v-for="(item, index) in attribute" :key="index">
          <div class="l">{{ item.name }}</div>
          <div class="r van-ellipsis">{{ item.value }}</div>
        </li>
      </ul>
    </div>

    <div v-html="goods_desc" class="goods_desc"></div>

    <div class="title0">
      <span>常见问题</span>
    </div>
    <ul class="issue">
      <li v-for="item in issue" :key="item.id">
        <h3>{{ item.question }}</h3>
        <p>{{ item.answer }}</p>
      </li>
    </ul>

    <div class="title0">
      <span>大家都在看</span>
    </div>
    <Products :goodsList="goodsList" />

    <van-sku
      ref="sku"
      v-model="isSkuShow"
      :sku="sku"
      :goods="goods"
      :hide-stock="sku.hide_stock"
    />
    <AppGoodActive @goTOCart="goTOCart" :goodsCount="goodsCount" />
  </div>
</template>

<script>
import Products from "@/components/Products";
import {
  getGoodsDetailData,
  getGoodsRelatedlData,
  getGoodsCount,
  addProductToCart
} from "@/request/api";
import Tips from "@/components/Tips";
import AppGoodActive from "@/components/AppGoodActive";
export default {
  data() {
    return {
      isSkuShow: false,
      sku: {
        tree: [],
        hide_stock: false,
        price: "1.00", // 默认价格（单位元）
        stock_num: 227 // 商品总库存
      },
      goods: {
        picture: ""
      },
      //   ----------------------
      //轮播图数据
      gallery: [],
      //商品信息
      info: {},
      //   商品参数
      attribute: [],
      //   商品信息（返回html标签）
      goods_desc: "",
      //   常见问题
      issue: [],
      // 相关产品
      goodsList: [],
      //购物车产品数量
      goodsCount: 0,
      //productList数据
      productList: []
    };
  },
  methods: {
    goTOCart() {
      //如果sku没有展示的情况下，点击购物车按钮，展示sku
      //如果sku已经在展示的状态，点击购物车按钮，跳转到购物车页面
      if (this.isSkuShow) {
        // 加入购物车
        console.log(this.$refs.sku.getSkuData().selectedNum);
        // 获取要添加的商品的数量
        addProductToCart({
          goodsId: this.$route.query.id,
          productId: this.productList[0].id,
          number: this.$refs.sku.getSkuData().selectedNum
        }).then(res => {
          if (res.errno == 0) {
            console.log("---------", res);
            //1、更新购物车数量
            this.goodsCount = res.data.cartTotal.goodsCount;
            //2、跳转到购物车页面
            this.$toast.success("加入购物车成功");
            setTimeout(() => {
              this.$router.push("/cart");
            }, 1000);
          }
        });
      } else {
        this.isSkuShow = true;
      }
    }
  },
  components: {
    Tips,
    AppGoodActive,
    Products
  },
  created() {
    //发送请求，请求这个商品的详情数据
    getGoodsDetailData({ id: this.$route.query.id }).then(res => {
      //   console.log(res);
      this.gallery = res.data.gallery;
      this.info = res.data.info;
      this.attribute = res.data.attribute;
      this.goods_desc = res.data.info.goods_desc;
      this.issue = res.data.issue;
      //sku数据：
      this.goods.picture = res.data.info.list_pic_url;
      this.sku.price = res.data.info.retail_price;
      this.sku.stock_num = res.data.info.goods_number;
      //productList数据
      this.productList = res.data.productList;
    });

    //发送请求获取相关产品数据（大家都在看模块）
    getGoodsRelatedlData({ id: this.$route.query.id }).then(res => {
      console.log(res);
      this.goodsList = res.data.goodsList;
    });

    //获取购物车产品数量
    getGoodsCount().then(res => {
      if (res.errno == 0) {
        // console.log(res);
        this.goodsCount = res.data.cartTotal.goodsCount;
      }
    });
  }
};
</script>
 
<style lang = "less" scoped>
.info {
  background-color: #fff;
  text-align: center;
  line-height: 0.4rem;
  padding: 0.1rem;
  border-bottom: 1px solid #ccc;
  .title {
    font-size: 0.2rem;
  }
  .retail_price {
    color: darkred;
  }
}
.attribute {
  background-color: #fff;
  margin-top: 0.2rem;
  padding: 0.1rem 0.168rem;
  h3 {
    font-size: 0.1638rem;
    line-height: 0.5rem;
  }
  li {
    height: 0.4rem;
    line-height: 0.4rem;
    background-color: #efefef;
    display: flex;
    margin-bottom: 0.1rem;
    border-radius: 0.05rem;
    .l {
      flex: 3;
      text-align: right;
      margin-right: 0.1rem;
      font-size: 0.12rem;
    }
    .r {
      flex: 7;
      font-size: 0.168rem;
    }
  }
}
/*深度样式写法，穿透ui组件的样式，直接添加在标签上*/
/deep/.goods_desc {
  img {
    display: block;
    width: 100%;
    border: 0;
    margin: 0;
    padding: 0;
  }
}

.title0 {
  width: 100%;
  background: #fff;
  height: 0.5rem;
  position: relative;
  &::before {
    content: "";
    width: 50%;
    height: 2px;
    background: #ccc;
    position: absolute;
    top: 50%;
    margin-top: -1px;
    left: 50%;
    margin-left: -25%;
  }
  span {
    width: 30%;
    position: relative;
    background: #fff;
    display: block;
    text-align: center;
    margin: 0 auto;
    height: 0.5rem;
    line-height: 0.5rem;
  }
}

.issue {
  padding: 0% 4%;
  background: #fff;
  li {
    h3 {
      height: 0.3rem;
      line-height: 0.3rem;
      padding-left: 0.2rem;
      position: relative;
      font-weight: normal;
      &::before {
        content: "";
        width: 4px;
        height: 4px;
        background: darkred;
        display: inline-block;
        position: absolute;
        left: 0;
        top: 50%;
        margin-top: -2px;
      }
    }
    p {
      font-size: 0.12rem;
      line-height: 0.2rem;
      padding-left: 0.2rem;
    }
  }
}
</style>